The HM400 from Hughes is a Software-Defined Modem that has been designed for satellite communications (SATCOM) on the move. It leverages an open architecture and can be used with any qualified system components that are suited for delivering mission-specific requirements. This modem can operate over multiple frequencies (L-, Ku-, Ka-, Mil Ka-, and X-band) and multi-orbit (LEO, MEO, GEO) constellations. It provides the capability to access worldwide SATCOM services through the existing VSAT and MobileSat service providers or customer-specific networks/gateways. The modem utilizes Hughes’ unique Scrambled Code Multiple Access (SCMA) waveform technology that enables bandwidth efficiency for smaller antennas and EBEM with integrated TRANSEC for fixed and mobile military applications.
The HM400 can host a large suite of downloadable, standardized government, and commercial waveforms. It offers multiple sophisticated signal processing capabilities in a low Size, Weight, and Power (SWaP) footprint. It integrates natural convection cooling mechanisms for temperature regulation and is compliant with environmental standard requirements. This modem delivers a data rate of up to 45 Mbps and an output power of 65-75 W. It has built-in lightning, EMI, and EMC protection circuitry to prevent hazardous events.
The HM400 is available in a ½-ATR-style enclosure that measures 5 x 13 x 8 inches and is compliant with the MIL-STD-810, 461-, 462-, and 464 environmental standards. It is ideal for storm tracking, disaster response, data communications, airborne geological surveys, and Beyond Line of Sight (BLOS) video applications.
